package com.atguigu.lease.web.admin.service.impl;

import com.atguigu.lease.common.constant.RedisConstant;
import com.atguigu.lease.common.exception.LeaseException;
import com.atguigu.lease.common.login.LoginUser;
import com.atguigu.lease.common.login.LoginUserHolder;
import com.atguigu.lease.common.result.ResultCodeEnum;
import com.atguigu.lease.common.utils.JwtUtil;
import com.atguigu.lease.model.entity.SystemUser;
import com.atguigu.lease.model.enums.BaseStatus;
import com.atguigu.lease.web.admin.mapper.SystemUserMapper;
import com.atguigu.lease.web.admin.service.LoginService;
import com.atguigu.lease.web.admin.vo.login.CaptchaVo;
import com.atguigu.lease.web.admin.vo.login.LoginVo;
import com.atguigu.lease.web.admin.vo.system.user.SystemUserInfoVo;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.wf.captcha.SpecCaptcha;
import org.apache.commons.codec.digest.DigestUtils;
import org.checkerframework.checker.units.qual.A;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.stereotype.Service;

import java.util.Objects;
import java.util.UUID;
import java.util.concurrent.TimeUnit;

@Service
public class LoginServiceImpl implements LoginService {
@Autowired
    private StringRedisTemplate stringRedisTemplate;
@Autowired
private SystemUserMapper systemUserMapper;
    @Override
    public CaptchaVo getCaptcha() {
        SpecCaptcha specCaptcha = new SpecCaptcha(130,48,4);

        String code = specCaptcha.text().toLowerCase();
        String key = RedisConstant.ADMIN_LOGIN_PREFIX + UUID.randomUUID();
        stringRedisTemplate.opsForValue().set(key,code,RedisConstant.ADMIN_LOGIN_CAPTCHA_TTL_SEC, TimeUnit.SECONDS);

        return new CaptchaVo(specCaptcha.toBase64(),key);
    }

    @Override
    public String login(LoginVo loginVo) {
        if(loginVo.getCaptchaCode()==null)
            throw new LeaseException(ResultCodeEnum.ADMIN_CAPTCHA_CODE_NOT_FOUND);

        String code = stringRedisTemplate.opsForValue().get(loginVo.getCaptchaKey());
        if(code==null)
            throw new LeaseException(ResultCodeEnum.APP_LOGIN_CODE_EXPIRED);
        if(!code.toLowerCase().equals(loginVo.getCaptchaCode()))
            throw new LeaseException(ResultCodeEnum.ADMIN_CAPTCHA_CODE_ERROR);

        SystemUser systemUser = systemUserMapper.selectOneByUserName(loginVo.getUsername());
        if(systemUser==null)
            throw new LeaseException(ResultCodeEnum.ADMIN_ACCOUNT_NOT_EXIST_ERROR);
        if(systemUser.getStatus()== BaseStatus.DISABLE)
            throw new LeaseException(ResultCodeEnum.ADMIN_ACCOUNT_DISABLED_ERROR);
        if(!(systemUser.getPassword().equals(DigestUtils.md5Hex(loginVo.getPassword()))))
            throw new LeaseException(ResultCodeEnum.ADMIN_ACCOUNT_ERROR);
        return JwtUtil.createToken(systemUser.getId(),systemUser.getUsername());
    }

    @Override
    public SystemUserInfoVo info(Long id) {
        SystemUser systemUser = systemUserMapper.selectById(id);
        String avatarUrl = systemUser.getAvatarUrl();
        String username = systemUser.getUsername();
        SystemUserInfoVo systemUserInfoVo = new SystemUserInfoVo();
        systemUserInfoVo.setName(username);
        systemUserInfoVo.setAvatarUrl(avatarUrl);
        return systemUserInfoVo;

    }

}
